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All questions of Digit Sum Method for Class 6 Exam

Find the digital sum of the given number 38.
  • a)
    2
  • b)
    10
  • c)
    11
  • d)
    12
Correct answer is option 'A'. Can you explain this answer?

Adding up the individual digits of 38, we get 3 + 8 = 11. However, since we are looking for the digital sum, we further add the digits of 11: 1 + 1 = 2. Therefore, the correct answer is 8, which is option a.

Find the digital sum of the given number 124.
  • a)
    8
  • b)
    7
  • c)
    9
  • d)
    10
Correct answer is option 'B'. Can you explain this answer?

Ananya Das answered
To find the digital sum of a number, we need to add up all the digits in the number. In this case, we have the number 124.

Step 1: Break down the number into its individual digits.
The number 124 can be broken down into three digits: 1, 2, and 4.

Step 2: Add up the digits.
Now, we add up these three digits: 1 + 2 + 4 = 7.

Therefore, the digital sum of the number 124 is 7.

Explanation:
The digital sum of a number is the sum of all its digits. In this case, we have the number 124. To find the digital sum, we break down the number into its individual digits, which are 1, 2, and 4. Then, we add up these digits: 1 + 2 + 4 = 7. Therefore, the digital sum of the number 124 is 7.

Find the digital sum of the given number 339.
  • a)
    17
  • b)
    16
  • c)
    15
  • d)
    18
Correct answer is option 'C'. Can you explain this answer?

Ananya Das answered
Digital sum refers to the sum of all the individual digits in a number. In this case, we need to find the digital sum of the number 339.

To find the digital sum, we will add the individual digits of the number together.

Solution:
Step 1: Break down the number into its individual digits.
The number 339 can be broken down into the digits 3, 3, and 9.

Step 2: Add the individual digits together.
3 + 3 + 9 = 15

Therefore, the digital sum of the number 339 is 15.

Hence, the correct answer is option 'A', 15.

Summary:
- The number 339 is broken down into its individual digits: 3, 3, and 9.
- The individual digits are added together: 3 + 3 + 9 = 15.
- Therefore, the digital sum of the number 339 is 15.

Solve the equation 1930 + 6196 and verify the answer using the Digital Sum method.
  • a)
    8128 
  • b)
    8127
  • c)
    8126
  • d)
    8129
Correct answer is option 'C'. Can you explain this answer?

Dishani Pillai answered
To solve the equation 1930 + 6196, we can simply add the two numbers together.

1930 + 6196 = 8126

Therefore, the answer to the equation is 8126.

Now, let's verify the answer using the Digital Sum method.

The Digital Sum method involves finding the sum of the digits of each number, and then adding those sums together. If the digital sum of the result matches the digital sum of the equation, then the answer is correct.

Step 1: Find the digital sum of 1930
Digital sum of 1930 = 1 + 9 + 3 + 0 = 13

Step 2: Find the digital sum of 6196
Digital sum of 6196 = 6 + 1 + 9 + 6 = 22

Step 3: Find the digital sum of the result (8126)
Digital sum of 8126 = 8 + 1 + 2 + 6 = 17

Step 4: Compare the digital sum of the result (17) with the digital sum of the equation (13 + 22 = 35)

Since the digital sum of the result (17) does not match the digital sum of the equation (35), the answer 8126 is incorrect.

Therefore, the correct answer is not any of the given options.

Find the digital sum of the given number 496.
  • a)
    18
  • b)
    19
  • c)
    20
  • d)
    21
Correct answer is option 'B'. Can you explain this answer?

The sum of the digits of 496 is 4 + 9 + 6 = 19. Therefore, the correct answer is option b.

Solve the equation 9670 + 398 and verify the answer using the Digital Sum method.
  • a)
    10098
  • b)
    10068
  • c)
    10078
  • d)
    10088
Correct answer is option 'B'. Can you explain this answer?

Adding the numbers 9670 and 398, we get 10068. The digital sum of 10068 is calculated as 1 + 0 + 0 + 6 + 8 = 15. Since we need a single-digit digital sum, we add the digits of 15: 1 + 5 = 6. Therefore, the correct answer is option b) 10088.

Solve the equation 6541 + 843 and verify the answer using the Digital Sum method.
  • a)
    7384 
  • b)
    7374
  • c)
    7394
  • d)
    7404
Correct answer is option 'A'. Can you explain this answer?

Anjali Sharma answered
Step 1: Solve the equation
6541 + 843 = 7384

Step 2: Verify using Digital Sum method

For 6541:
6 + 5 + 4 + 1 = 16
1 + 6 = 7

For 843:
8 + 4 + 3 = 15
1 + 5 = 6

For 7384:
7 + 3 + 8 + 4 = 22
2 + 2 = 4
Since the digital sum of the sum of the two numbers (7384) matches the sum of the digital sums of the individual numbers (7 + 6), the answer is correct.
Therefore, the correct answer is option A) 7374.

Solve the equation 873 + 4466 and verify the answer using the Digital Sum method.
  • a)
    5339
  • b)
    5337
  • c)
    5335
  • d)
    5333
Correct answer is option 'A'. Can you explain this answer?

Adding the numbers 873 and 4466, we get 5339. The digital sum of 5339 is calculated as 5 + 3 + 3 + 9 = 20. Since we need a single-digit digital sum, we add the digits of 20: 2 + 0 = 2. Therefore, the correct answer is option a) 5339.

Solve the equation 4943 + 862 and verify the answer using the Digital Sum method.
  • a)
    5795
  • b)
    5805
  • c)
    5793
  • d)
    5792
Correct answer is option 'B'. Can you explain this answer?

Adding the numbers 4943 and 862, we get 5805. The digital sum of 5805 is calculated as 5 + 8 + 0 + 5 = 18. Since we need a single-digit digital sum, we add the digits of 18: 1 + 8 = 9. Therefore, the correct answer is option b) 5794.

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